Time Zone is a Term to describe the local time of a Region or a Country. The local Time within a Time Zone Map is described by its offset (difference) from Coordinated Universal Time (UTC). It is the world’s time standard. There is a 9-time zone in the Time Zone Map of the USA and its dependencies. All-time zone boundaries and DST observance are looking after by the Department of Transportation. Daylight Saving Time (DST) begins at 2:00 a.m. local time on the second Sunday in March. It moves the clocks forward one hour for making better use of daylight.
List of State With Time Zone
| State Name | Time Zone(s) |
| Alabama | Central Time Zone |
| Alaska | Alaska Time Zone, Hawaii-Aleutian Time Zone |
| Arizona | Mountain Time Zone |
| Arkansas | Central Time Zone |
| California | Pacific Time Zone |
| Colorado | Mountain Time Zone |
| Connecticut | Eastern Time Zone |
| Delaware | Eastern Time Zone |
| Florida | Eastern Time Zone, Central Time Zone |
| Georgia | Eastern Time Zone |
| Hawaii | Hawaii-Aleutian Time Zone |
| Idaho | Mountain Time Zone, Pacific Time Zone |
| Illinois | Central Time Zone |
| Indiana | Eastern Time Zone, Central Time Zone |
| Iowa | Central Time Zone |
| Kansas | Central Time Zone, Mountain Time Zone |
| Kentucky | Eastern Time Zone, Central Time Zone |
| Louisiana | Central Time Zone |
| Maine | Eastern Time Zone |
| Maryland | Eastern Time Zone |
| Massachusetts | Eastern Time Zone |
| Michigan | Eastern Time Zone, Central Time Zone |
| Minnesota | Central Time Zone |
| Mississippi | Central Time Zone |
| Missouri | Central Time Zone |
| Montana | Mountain Time Zone |
| Nebraska | Central Time Zone, Mountain Time Zone |
| Nevada | Pacific Time Zone, Mountain Time Zone |
| New Hampshire | Eastern Time Zone |
| New Jersey | Eastern Time Zone |
| New Mexico | Mountain Time Zone |
| New York | Eastern Time Zone |
| North Carolina | Eastern Time Zone |
| North Dakota | Central Time Zone, Mountain Time Zone |
| Ohio | Eastern Time Zone |
| Oklahoma | Central Time Zone |
| Oregon | Pacific Time Zone, Mountain Time Zone |
| Pennsylvania | Eastern Time Zone |
| Rhode Island | Eastern Time Zone |
| South Carolina | Eastern Time Zone |
| South Dakota | Central Time Zone, Mountain Time Zone |
| Tennessee | Eastern Time Zone, Central Time Zone |
| Texas | Central Time Zone, Mountain Time Zone |
| Utah | Mountain Time Zone |
| Vermont | Eastern Time Zone |
| Virginia | Eastern Time Zone |
| Washington | Pacific Time Zone |
| West Virginia | Eastern Time Zone |
| Wisconsin | Central Time Zone |
| Wyoming | Mountain Time Zone |